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2328826b MF |
1 | /* |
2 | * Xtensa ISA: | |
3 | * http://www.tensilica.com/products/literature-docs/documentation/xtensa-isa-databook.htm | |
4 | * | |
5 | * Copyright (c) 2011, Max Filippov, Open Source and Linux Lab. | |
6 | * All rights reserved. | |
7 | * | |
8 | * Redistribution and use in source and binary forms, with or without | |
9 | * modification, are permitted provided that the following conditions are met: | |
10 | * * Redistributions of source code must retain the above copyright | |
11 | * notice, this list of conditions and the following disclaimer. | |
12 | * * Redistributions in binary form must reproduce the above copyright | |
13 | * notice, this list of conditions and the following disclaimer in the | |
14 | * documentation and/or other materials provided with the distribution. | |
15 | * * Neither the name of the Open Source and Linux Lab nor the | |
16 | * names of its contributors may be used to endorse or promote products | |
17 | * derived from this software without specific prior written permission. | |
18 | * | |
19 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
20 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
21 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
22 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY | |
23 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | |
24 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
25 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND | |
26 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
27 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | |
28 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
29 | */ | |
30 | ||
31 | #include <stdio.h> | |
32 | ||
33 | #include "cpu.h" | |
34 | #include "exec-all.h" | |
35 | #include "disas.h" | |
36 | #include "tcg-op.h" | |
37 | #include "qemu-log.h" | |
38 | ||
dedc5eae MF |
39 | #include "helpers.h" |
40 | #define GEN_HELPER 1 | |
41 | #include "helpers.h" | |
42 | ||
43 | typedef struct DisasContext { | |
44 | const XtensaConfig *config; | |
45 | TranslationBlock *tb; | |
46 | uint32_t pc; | |
47 | uint32_t next_pc; | |
48 | int is_jmp; | |
49 | int singlestep_enabled; | |
3580ecad MF |
50 | |
51 | bool sar_5bit; | |
52 | bool sar_m32_5bit; | |
53 | bool sar_m32_allocated; | |
54 | TCGv_i32 sar_m32; | |
dedc5eae MF |
55 | } DisasContext; |
56 | ||
57 | static TCGv_ptr cpu_env; | |
58 | static TCGv_i32 cpu_pc; | |
59 | static TCGv_i32 cpu_R[16]; | |
2af3da91 MF |
60 | static TCGv_i32 cpu_SR[256]; |
61 | static TCGv_i32 cpu_UR[256]; | |
dedc5eae MF |
62 | |
63 | #include "gen-icount.h" | |
2328826b | 64 | |
2af3da91 | 65 | static const char * const sregnames[256] = { |
3580ecad | 66 | [SAR] = "SAR", |
809377aa | 67 | [SCOMPARE1] = "SCOMPARE1", |
2af3da91 MF |
68 | }; |
69 | ||
70 | static const char * const uregnames[256] = { | |
71 | [THREADPTR] = "THREADPTR", | |
72 | [FCR] = "FCR", | |
73 | [FSR] = "FSR", | |
74 | }; | |
75 | ||
2328826b MF |
76 | void xtensa_translate_init(void) |
77 | { | |
dedc5eae MF |
78 | static const char * const regnames[] = { |
79 | "ar0", "ar1", "ar2", "ar3", | |
80 | "ar4", "ar5", "ar6", "ar7", | |
81 | "ar8", "ar9", "ar10", "ar11", | |
82 | "ar12", "ar13", "ar14", "ar15", | |
83 | }; | |
84 | int i; | |
85 | ||
86 | cpu_env = tcg_global_reg_new_ptr(TCG_AREG0, "env"); | |
87 | cpu_pc = tcg_global_mem_new_i32(TCG_AREG0, | |
88 | offsetof(CPUState, pc), "pc"); | |
89 | ||
90 | for (i = 0; i < 16; i++) { | |
91 | cpu_R[i] = tcg_global_mem_new_i32(TCG_AREG0, | |
92 | offsetof(CPUState, regs[i]), | |
93 | regnames[i]); | |
94 | } | |
2af3da91 MF |
95 | |
96 | for (i = 0; i < 256; ++i) { | |
97 | if (sregnames[i]) { | |
98 | cpu_SR[i] = tcg_global_mem_new_i32(TCG_AREG0, | |
99 | offsetof(CPUState, sregs[i]), | |
100 | sregnames[i]); | |
101 | } | |
102 | } | |
103 | ||
104 | for (i = 0; i < 256; ++i) { | |
105 | if (uregnames[i]) { | |
106 | cpu_UR[i] = tcg_global_mem_new_i32(TCG_AREG0, | |
107 | offsetof(CPUState, uregs[i]), | |
108 | uregnames[i]); | |
109 | } | |
110 | } | |
dedc5eae MF |
111 | #define GEN_HELPER 2 |
112 | #include "helpers.h" | |
113 | } | |
114 | ||
115 | static inline bool option_enabled(DisasContext *dc, int opt) | |
116 | { | |
117 | return xtensa_option_enabled(dc->config, opt); | |
118 | } | |
119 | ||
3580ecad MF |
120 | static void init_sar_tracker(DisasContext *dc) |
121 | { | |
122 | dc->sar_5bit = false; | |
123 | dc->sar_m32_5bit = false; | |
124 | dc->sar_m32_allocated = false; | |
125 | } | |
126 | ||
127 | static void reset_sar_tracker(DisasContext *dc) | |
128 | { | |
129 | if (dc->sar_m32_allocated) { | |
130 | tcg_temp_free(dc->sar_m32); | |
131 | } | |
132 | } | |
133 | ||
134 | static void gen_right_shift_sar(DisasContext *dc, TCGv_i32 sa) | |
135 | { | |
136 | tcg_gen_andi_i32(cpu_SR[SAR], sa, 0x1f); | |
137 | if (dc->sar_m32_5bit) { | |
138 | tcg_gen_discard_i32(dc->sar_m32); | |
139 | } | |
140 | dc->sar_5bit = true; | |
141 | dc->sar_m32_5bit = false; | |
142 | } | |
143 | ||
144 | static void gen_left_shift_sar(DisasContext *dc, TCGv_i32 sa) | |
145 | { | |
146 | TCGv_i32 tmp = tcg_const_i32(32); | |
147 | if (!dc->sar_m32_allocated) { | |
148 | dc->sar_m32 = tcg_temp_local_new_i32(); | |
149 | dc->sar_m32_allocated = true; | |
150 | } | |
151 | tcg_gen_andi_i32(dc->sar_m32, sa, 0x1f); | |
152 | tcg_gen_sub_i32(cpu_SR[SAR], tmp, dc->sar_m32); | |
153 | dc->sar_5bit = false; | |
154 | dc->sar_m32_5bit = true; | |
155 | tcg_temp_free(tmp); | |
156 | } | |
157 | ||
dedc5eae MF |
158 | static void gen_exception(int excp) |
159 | { | |
160 | TCGv_i32 tmp = tcg_const_i32(excp); | |
161 | gen_helper_exception(tmp); | |
162 | tcg_temp_free(tmp); | |
163 | } | |
164 | ||
165 | static void gen_jump_slot(DisasContext *dc, TCGv dest, int slot) | |
166 | { | |
167 | tcg_gen_mov_i32(cpu_pc, dest); | |
168 | if (dc->singlestep_enabled) { | |
169 | gen_exception(EXCP_DEBUG); | |
170 | } else { | |
171 | if (slot >= 0) { | |
172 | tcg_gen_goto_tb(slot); | |
173 | tcg_gen_exit_tb((tcg_target_long)dc->tb + slot); | |
174 | } else { | |
175 | tcg_gen_exit_tb(0); | |
176 | } | |
177 | } | |
178 | dc->is_jmp = DISAS_UPDATE; | |
179 | } | |
180 | ||
67882fd1 MF |
181 | static void gen_jump(DisasContext *dc, TCGv dest) |
182 | { | |
183 | gen_jump_slot(dc, dest, -1); | |
184 | } | |
185 | ||
dedc5eae MF |
186 | static void gen_jumpi(DisasContext *dc, uint32_t dest, int slot) |
187 | { | |
188 | TCGv_i32 tmp = tcg_const_i32(dest); | |
189 | if (((dc->pc ^ dest) & TARGET_PAGE_MASK) != 0) { | |
190 | slot = -1; | |
191 | } | |
192 | gen_jump_slot(dc, tmp, slot); | |
193 | tcg_temp_free(tmp); | |
194 | } | |
195 | ||
bd57fb91 MF |
196 | static void gen_brcond(DisasContext *dc, TCGCond cond, |
197 | TCGv_i32 t0, TCGv_i32 t1, uint32_t offset) | |
198 | { | |
199 | int label = gen_new_label(); | |
200 | ||
201 | tcg_gen_brcond_i32(cond, t0, t1, label); | |
202 | gen_jumpi(dc, dc->next_pc, 0); | |
203 | gen_set_label(label); | |
204 | gen_jumpi(dc, dc->pc + offset, 1); | |
205 | } | |
206 | ||
207 | static void gen_brcondi(DisasContext *dc, TCGCond cond, | |
208 | TCGv_i32 t0, uint32_t t1, uint32_t offset) | |
209 | { | |
210 | TCGv_i32 tmp = tcg_const_i32(t1); | |
211 | gen_brcond(dc, cond, t0, tmp, offset); | |
212 | tcg_temp_free(tmp); | |
213 | } | |
214 | ||
b8132eff MF |
215 | static void gen_rsr(DisasContext *dc, TCGv_i32 d, uint32_t sr) |
216 | { | |
217 | static void (* const rsr_handler[256])(DisasContext *dc, | |
218 | TCGv_i32 d, uint32_t sr) = { | |
219 | }; | |
220 | ||
221 | if (sregnames[sr]) { | |
222 | if (rsr_handler[sr]) { | |
223 | rsr_handler[sr](dc, d, sr); | |
224 | } else { | |
225 | tcg_gen_mov_i32(d, cpu_SR[sr]); | |
226 | } | |
227 | } else { | |
228 | qemu_log("RSR %d not implemented, ", sr); | |
229 | } | |
230 | } | |
231 | ||
3580ecad MF |
232 | static void gen_wsr_sar(DisasContext *dc, uint32_t sr, TCGv_i32 s) |
233 | { | |
234 | tcg_gen_andi_i32(cpu_SR[sr], s, 0x3f); | |
235 | if (dc->sar_m32_5bit) { | |
236 | tcg_gen_discard_i32(dc->sar_m32); | |
237 | } | |
238 | dc->sar_5bit = false; | |
239 | dc->sar_m32_5bit = false; | |
240 | } | |
241 | ||
b8132eff MF |
242 | static void gen_wsr(DisasContext *dc, uint32_t sr, TCGv_i32 s) |
243 | { | |
244 | static void (* const wsr_handler[256])(DisasContext *dc, | |
245 | uint32_t sr, TCGv_i32 v) = { | |
3580ecad | 246 | [SAR] = gen_wsr_sar, |
b8132eff MF |
247 | }; |
248 | ||
249 | if (sregnames[sr]) { | |
250 | if (wsr_handler[sr]) { | |
251 | wsr_handler[sr](dc, sr, s); | |
252 | } else { | |
253 | tcg_gen_mov_i32(cpu_SR[sr], s); | |
254 | } | |
255 | } else { | |
256 | qemu_log("WSR %d not implemented, ", sr); | |
257 | } | |
258 | } | |
259 | ||
dedc5eae MF |
260 | static void disas_xtensa_insn(DisasContext *dc) |
261 | { | |
262 | #define HAS_OPTION(opt) do { \ | |
263 | if (!option_enabled(dc, opt)) { \ | |
264 | qemu_log("Option %d is not enabled %s:%d\n", \ | |
265 | (opt), __FILE__, __LINE__); \ | |
266 | goto invalid_opcode; \ | |
267 | } \ | |
268 | } while (0) | |
269 | ||
270 | #ifdef TARGET_WORDS_BIGENDIAN | |
271 | #define OP0 (((b0) & 0xf0) >> 4) | |
272 | #define OP1 (((b2) & 0xf0) >> 4) | |
273 | #define OP2 ((b2) & 0xf) | |
274 | #define RRR_R ((b1) & 0xf) | |
275 | #define RRR_S (((b1) & 0xf0) >> 4) | |
276 | #define RRR_T ((b0) & 0xf) | |
277 | #else | |
278 | #define OP0 (((b0) & 0xf)) | |
279 | #define OP1 (((b2) & 0xf)) | |
280 | #define OP2 (((b2) & 0xf0) >> 4) | |
281 | #define RRR_R (((b1) & 0xf0) >> 4) | |
282 | #define RRR_S (((b1) & 0xf)) | |
283 | #define RRR_T (((b0) & 0xf0) >> 4) | |
284 | #endif | |
285 | ||
286 | #define RRRN_R RRR_R | |
287 | #define RRRN_S RRR_S | |
288 | #define RRRN_T RRR_T | |
289 | ||
290 | #define RRI8_R RRR_R | |
291 | #define RRI8_S RRR_S | |
292 | #define RRI8_T RRR_T | |
293 | #define RRI8_IMM8 (b2) | |
294 | #define RRI8_IMM8_SE ((((b2) & 0x80) ? 0xffffff00 : 0) | RRI8_IMM8) | |
295 | ||
296 | #ifdef TARGET_WORDS_BIGENDIAN | |
297 | #define RI16_IMM16 (((b1) << 8) | (b2)) | |
298 | #else | |
299 | #define RI16_IMM16 (((b2) << 8) | (b1)) | |
300 | #endif | |
301 | ||
302 | #ifdef TARGET_WORDS_BIGENDIAN | |
303 | #define CALL_N (((b0) & 0xc) >> 2) | |
304 | #define CALL_OFFSET ((((b0) & 0x3) << 16) | ((b1) << 8) | (b2)) | |
305 | #else | |
306 | #define CALL_N (((b0) & 0x30) >> 4) | |
307 | #define CALL_OFFSET ((((b0) & 0xc0) >> 6) | ((b1) << 2) | ((b2) << 10)) | |
308 | #endif | |
309 | #define CALL_OFFSET_SE \ | |
310 | (((CALL_OFFSET & 0x20000) ? 0xfffc0000 : 0) | CALL_OFFSET) | |
311 | ||
312 | #define CALLX_N CALL_N | |
313 | #ifdef TARGET_WORDS_BIGENDIAN | |
314 | #define CALLX_M ((b0) & 0x3) | |
315 | #else | |
316 | #define CALLX_M (((b0) & 0xc0) >> 6) | |
317 | #endif | |
318 | #define CALLX_S RRR_S | |
319 | ||
320 | #define BRI12_M CALLX_M | |
321 | #define BRI12_S RRR_S | |
322 | #ifdef TARGET_WORDS_BIGENDIAN | |
323 | #define BRI12_IMM12 ((((b1) & 0xf) << 8) | (b2)) | |
324 | #else | |
325 | #define BRI12_IMM12 ((((b1) & 0xf0) >> 4) | ((b2) << 4)) | |
326 | #endif | |
327 | #define BRI12_IMM12_SE (((BRI12_IMM12 & 0x800) ? 0xfffff000 : 0) | BRI12_IMM12) | |
328 | ||
329 | #define BRI8_M BRI12_M | |
330 | #define BRI8_R RRI8_R | |
331 | #define BRI8_S RRI8_S | |
332 | #define BRI8_IMM8 RRI8_IMM8 | |
333 | #define BRI8_IMM8_SE RRI8_IMM8_SE | |
334 | ||
335 | #define RSR_SR (b1) | |
336 | ||
337 | uint8_t b0 = ldub_code(dc->pc); | |
338 | uint8_t b1 = ldub_code(dc->pc + 1); | |
339 | uint8_t b2 = ldub_code(dc->pc + 2); | |
340 | ||
bd57fb91 MF |
341 | static const uint32_t B4CONST[] = { |
342 | 0xffffffff, 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 16, 32, 64, 128, 256 | |
343 | }; | |
344 | ||
345 | static const uint32_t B4CONSTU[] = { | |
346 | 32768, 65536, 2, 3, 4, 5, 6, 7, 8, 10, 12, 16, 32, 64, 128, 256 | |
347 | }; | |
348 | ||
dedc5eae MF |
349 | if (OP0 >= 8) { |
350 | dc->next_pc = dc->pc + 2; | |
351 | HAS_OPTION(XTENSA_OPTION_CODE_DENSITY); | |
352 | } else { | |
353 | dc->next_pc = dc->pc + 3; | |
354 | } | |
355 | ||
356 | switch (OP0) { | |
357 | case 0: /*QRST*/ | |
358 | switch (OP1) { | |
359 | case 0: /*RST0*/ | |
360 | switch (OP2) { | |
361 | case 0: /*ST0*/ | |
362 | if ((RRR_R & 0xc) == 0x8) { | |
363 | HAS_OPTION(XTENSA_OPTION_BOOLEAN); | |
364 | } | |
365 | ||
366 | switch (RRR_R) { | |
367 | case 0: /*SNM0*/ | |
5da4a6a8 MF |
368 | switch (CALLX_M) { |
369 | case 0: /*ILL*/ | |
370 | break; | |
371 | ||
372 | case 1: /*reserved*/ | |
373 | break; | |
374 | ||
375 | case 2: /*JR*/ | |
376 | switch (CALLX_N) { | |
377 | case 0: /*RET*/ | |
378 | case 2: /*JX*/ | |
379 | gen_jump(dc, cpu_R[CALLX_S]); | |
380 | break; | |
381 | ||
382 | case 1: /*RETWw*/ | |
383 | HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); | |
384 | break; | |
385 | ||
386 | case 3: /*reserved*/ | |
387 | break; | |
388 | } | |
389 | break; | |
390 | ||
391 | case 3: /*CALLX*/ | |
392 | switch (CALLX_N) { | |
393 | case 0: /*CALLX0*/ | |
394 | { | |
395 | TCGv_i32 tmp = tcg_temp_new_i32(); | |
396 | tcg_gen_mov_i32(tmp, cpu_R[CALLX_S]); | |
397 | tcg_gen_movi_i32(cpu_R[0], dc->next_pc); | |
398 | gen_jump(dc, tmp); | |
399 | tcg_temp_free(tmp); | |
400 | } | |
401 | break; | |
402 | ||
403 | case 1: /*CALLX4w*/ | |
404 | case 2: /*CALLX8w*/ | |
405 | case 3: /*CALLX12w*/ | |
406 | HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); | |
407 | break; | |
408 | } | |
409 | break; | |
410 | } | |
dedc5eae MF |
411 | break; |
412 | ||
413 | case 1: /*MOVSPw*/ | |
414 | HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); | |
415 | break; | |
416 | ||
417 | case 2: /*SYNC*/ | |
418 | break; | |
419 | ||
420 | case 3: | |
421 | break; | |
422 | ||
423 | } | |
424 | break; | |
425 | ||
426 | case 1: /*AND*/ | |
427 | tcg_gen_and_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); | |
428 | break; | |
429 | ||
430 | case 2: /*OR*/ | |
431 | tcg_gen_or_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); | |
432 | break; | |
433 | ||
434 | case 3: /*XOR*/ | |
435 | tcg_gen_xor_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); | |
436 | break; | |
437 | ||
438 | case 4: /*ST1*/ | |
3580ecad MF |
439 | switch (RRR_R) { |
440 | case 0: /*SSR*/ | |
441 | gen_right_shift_sar(dc, cpu_R[RRR_S]); | |
442 | break; | |
443 | ||
444 | case 1: /*SSL*/ | |
445 | gen_left_shift_sar(dc, cpu_R[RRR_S]); | |
446 | break; | |
447 | ||
448 | case 2: /*SSA8L*/ | |
449 | { | |
450 | TCGv_i32 tmp = tcg_temp_new_i32(); | |
451 | tcg_gen_shli_i32(tmp, cpu_R[RRR_S], 3); | |
452 | gen_right_shift_sar(dc, tmp); | |
453 | tcg_temp_free(tmp); | |
454 | } | |
455 | break; | |
456 | ||
457 | case 3: /*SSA8B*/ | |
458 | { | |
459 | TCGv_i32 tmp = tcg_temp_new_i32(); | |
460 | tcg_gen_shli_i32(tmp, cpu_R[RRR_S], 3); | |
461 | gen_left_shift_sar(dc, tmp); | |
462 | tcg_temp_free(tmp); | |
463 | } | |
464 | break; | |
465 | ||
466 | case 4: /*SSAI*/ | |
467 | { | |
468 | TCGv_i32 tmp = tcg_const_i32( | |
469 | RRR_S | ((RRR_T & 1) << 4)); | |
470 | gen_right_shift_sar(dc, tmp); | |
471 | tcg_temp_free(tmp); | |
472 | } | |
473 | break; | |
474 | ||
475 | case 6: /*RER*/ | |
476 | break; | |
477 | ||
478 | case 7: /*WER*/ | |
479 | break; | |
480 | ||
481 | case 8: /*ROTWw*/ | |
482 | HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); | |
483 | break; | |
484 | ||
485 | case 14: /*NSAu*/ | |
486 | HAS_OPTION(XTENSA_OPTION_MISC_OP); | |
487 | gen_helper_nsa(cpu_R[RRR_T], cpu_R[RRR_S]); | |
488 | break; | |
489 | ||
490 | case 15: /*NSAUu*/ | |
491 | HAS_OPTION(XTENSA_OPTION_MISC_OP); | |
492 | gen_helper_nsau(cpu_R[RRR_T], cpu_R[RRR_S]); | |
493 | break; | |
494 | ||
495 | default: /*reserved*/ | |
496 | break; | |
497 | } | |
dedc5eae MF |
498 | break; |
499 | ||
500 | case 5: /*TLB*/ | |
501 | break; | |
502 | ||
503 | case 6: /*RT0*/ | |
f331fe5e MF |
504 | switch (RRR_S) { |
505 | case 0: /*NEG*/ | |
506 | tcg_gen_neg_i32(cpu_R[RRR_R], cpu_R[RRR_T]); | |
507 | break; | |
508 | ||
509 | case 1: /*ABS*/ | |
510 | { | |
511 | int label = gen_new_label(); | |
512 | tcg_gen_mov_i32(cpu_R[RRR_R], cpu_R[RRR_T]); | |
513 | tcg_gen_brcondi_i32( | |
514 | TCG_COND_GE, cpu_R[RRR_R], 0, label); | |
515 | tcg_gen_neg_i32(cpu_R[RRR_R], cpu_R[RRR_T]); | |
516 | gen_set_label(label); | |
517 | } | |
518 | break; | |
519 | ||
520 | default: /*reserved*/ | |
521 | break; | |
522 | } | |
dedc5eae MF |
523 | break; |
524 | ||
525 | case 7: /*reserved*/ | |
526 | break; | |
527 | ||
528 | case 8: /*ADD*/ | |
529 | tcg_gen_add_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); | |
530 | break; | |
531 | ||
532 | case 9: /*ADD**/ | |
533 | case 10: | |
534 | case 11: | |
535 | { | |
536 | TCGv_i32 tmp = tcg_temp_new_i32(); | |
537 | tcg_gen_shli_i32(tmp, cpu_R[RRR_S], OP2 - 8); | |
538 | tcg_gen_add_i32(cpu_R[RRR_R], tmp, cpu_R[RRR_T]); | |
539 | tcg_temp_free(tmp); | |
540 | } | |
541 | break; | |
542 | ||
543 | case 12: /*SUB*/ | |
544 | tcg_gen_sub_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); | |
545 | break; | |
546 | ||
547 | case 13: /*SUB**/ | |
548 | case 14: | |
549 | case 15: | |
550 | { | |
551 | TCGv_i32 tmp = tcg_temp_new_i32(); | |
552 | tcg_gen_shli_i32(tmp, cpu_R[RRR_S], OP2 - 12); | |
553 | tcg_gen_sub_i32(cpu_R[RRR_R], tmp, cpu_R[RRR_T]); | |
554 | tcg_temp_free(tmp); | |
555 | } | |
556 | break; | |
557 | } | |
558 | break; | |
559 | ||
560 | case 1: /*RST1*/ | |
3580ecad MF |
561 | switch (OP2) { |
562 | case 0: /*SLLI*/ | |
563 | case 1: | |
564 | tcg_gen_shli_i32(cpu_R[RRR_R], cpu_R[RRR_S], | |
565 | 32 - (RRR_T | ((OP2 & 1) << 4))); | |
566 | break; | |
567 | ||
568 | case 2: /*SRAI*/ | |
569 | case 3: | |
570 | tcg_gen_sari_i32(cpu_R[RRR_R], cpu_R[RRR_T], | |
571 | RRR_S | ((OP2 & 1) << 4)); | |
572 | break; | |
573 | ||
574 | case 4: /*SRLI*/ | |
575 | tcg_gen_shri_i32(cpu_R[RRR_R], cpu_R[RRR_T], RRR_S); | |
576 | break; | |
577 | ||
578 | case 6: /*XSR*/ | |
579 | { | |
580 | TCGv_i32 tmp = tcg_temp_new_i32(); | |
581 | tcg_gen_mov_i32(tmp, cpu_R[RRR_T]); | |
582 | gen_rsr(dc, cpu_R[RRR_T], RSR_SR); | |
583 | gen_wsr(dc, RSR_SR, tmp); | |
584 | tcg_temp_free(tmp); | |
585 | } | |
586 | break; | |
587 | ||
588 | /* | |
589 | * Note: 64 bit ops are used here solely because SAR values | |
590 | * have range 0..63 | |
591 | */ | |
592 | #define gen_shift_reg(cmd, reg) do { \ | |
593 | TCGv_i64 tmp = tcg_temp_new_i64(); \ | |
594 | tcg_gen_extu_i32_i64(tmp, reg); \ | |
595 | tcg_gen_##cmd##_i64(v, v, tmp); \ | |
596 | tcg_gen_trunc_i64_i32(cpu_R[RRR_R], v); \ | |
597 | tcg_temp_free_i64(v); \ | |
598 | tcg_temp_free_i64(tmp); \ | |
599 | } while (0) | |
600 | ||
601 | #define gen_shift(cmd) gen_shift_reg(cmd, cpu_SR[SAR]) | |
602 | ||
603 | case 8: /*SRC*/ | |
604 | { | |
605 | TCGv_i64 v = tcg_temp_new_i64(); | |
606 | tcg_gen_concat_i32_i64(v, cpu_R[RRR_T], cpu_R[RRR_S]); | |
607 | gen_shift(shr); | |
608 | } | |
609 | break; | |
610 | ||
611 | case 9: /*SRL*/ | |
612 | if (dc->sar_5bit) { | |
613 | tcg_gen_shr_i32(cpu_R[RRR_R], cpu_R[RRR_T], cpu_SR[SAR]); | |
614 | } else { | |
615 | TCGv_i64 v = tcg_temp_new_i64(); | |
616 | tcg_gen_extu_i32_i64(v, cpu_R[RRR_T]); | |
617 | gen_shift(shr); | |
618 | } | |
619 | break; | |
620 | ||
621 | case 10: /*SLL*/ | |
622 | if (dc->sar_m32_5bit) { | |
623 | tcg_gen_shl_i32(cpu_R[RRR_R], cpu_R[RRR_S], dc->sar_m32); | |
624 | } else { | |
625 | TCGv_i64 v = tcg_temp_new_i64(); | |
626 | TCGv_i32 s = tcg_const_i32(32); | |
627 | tcg_gen_sub_i32(s, s, cpu_SR[SAR]); | |
628 | tcg_gen_andi_i32(s, s, 0x3f); | |
629 | tcg_gen_extu_i32_i64(v, cpu_R[RRR_S]); | |
630 | gen_shift_reg(shl, s); | |
631 | tcg_temp_free(s); | |
632 | } | |
633 | break; | |
634 | ||
635 | case 11: /*SRA*/ | |
636 | if (dc->sar_5bit) { | |
637 | tcg_gen_sar_i32(cpu_R[RRR_R], cpu_R[RRR_T], cpu_SR[SAR]); | |
638 | } else { | |
639 | TCGv_i64 v = tcg_temp_new_i64(); | |
640 | tcg_gen_ext_i32_i64(v, cpu_R[RRR_T]); | |
641 | gen_shift(sar); | |
642 | } | |
643 | break; | |
644 | #undef gen_shift | |
645 | #undef gen_shift_reg | |
646 | ||
647 | case 12: /*MUL16U*/ | |
648 | HAS_OPTION(XTENSA_OPTION_16_BIT_IMUL); | |
649 | { | |
650 | TCGv_i32 v1 = tcg_temp_new_i32(); | |
651 | TCGv_i32 v2 = tcg_temp_new_i32(); | |
652 | tcg_gen_ext16u_i32(v1, cpu_R[RRR_S]); | |
653 | tcg_gen_ext16u_i32(v2, cpu_R[RRR_T]); | |
654 | tcg_gen_mul_i32(cpu_R[RRR_R], v1, v2); | |
655 | tcg_temp_free(v2); | |
656 | tcg_temp_free(v1); | |
657 | } | |
658 | break; | |
659 | ||
660 | case 13: /*MUL16S*/ | |
661 | HAS_OPTION(XTENSA_OPTION_16_BIT_IMUL); | |
662 | { | |
663 | TCGv_i32 v1 = tcg_temp_new_i32(); | |
664 | TCGv_i32 v2 = tcg_temp_new_i32(); | |
665 | tcg_gen_ext16s_i32(v1, cpu_R[RRR_S]); | |
666 | tcg_gen_ext16s_i32(v2, cpu_R[RRR_T]); | |
667 | tcg_gen_mul_i32(cpu_R[RRR_R], v1, v2); | |
668 | tcg_temp_free(v2); | |
669 | tcg_temp_free(v1); | |
670 | } | |
671 | break; | |
672 | ||
673 | default: /*reserved*/ | |
674 | break; | |
675 | } | |
dedc5eae MF |
676 | break; |
677 | ||
678 | case 2: /*RST2*/ | |
679 | break; | |
680 | ||
681 | case 3: /*RST3*/ | |
b8132eff MF |
682 | switch (OP2) { |
683 | case 0: /*RSR*/ | |
684 | gen_rsr(dc, cpu_R[RRR_T], RSR_SR); | |
685 | break; | |
686 | ||
687 | case 1: /*WSR*/ | |
688 | gen_wsr(dc, RSR_SR, cpu_R[RRR_T]); | |
689 | break; | |
690 | ||
691 | case 2: /*SEXTu*/ | |
692 | HAS_OPTION(XTENSA_OPTION_MISC_OP); | |
693 | { | |
694 | int shift = 24 - RRR_T; | |
695 | ||
696 | if (shift == 24) { | |
697 | tcg_gen_ext8s_i32(cpu_R[RRR_R], cpu_R[RRR_S]); | |
698 | } else if (shift == 16) { | |
699 | tcg_gen_ext16s_i32(cpu_R[RRR_R], cpu_R[RRR_S]); | |
700 | } else { | |
701 | TCGv_i32 tmp = tcg_temp_new_i32(); | |
702 | tcg_gen_shli_i32(tmp, cpu_R[RRR_S], shift); | |
703 | tcg_gen_sari_i32(cpu_R[RRR_R], tmp, shift); | |
704 | tcg_temp_free(tmp); | |
705 | } | |
706 | } | |
707 | break; | |
708 | ||
709 | case 3: /*CLAMPSu*/ | |
710 | HAS_OPTION(XTENSA_OPTION_MISC_OP); | |
711 | { | |
712 | TCGv_i32 tmp1 = tcg_temp_new_i32(); | |
713 | TCGv_i32 tmp2 = tcg_temp_new_i32(); | |
714 | int label = gen_new_label(); | |
715 | ||
716 | tcg_gen_sari_i32(tmp1, cpu_R[RRR_S], 24 - RRR_T); | |
717 | tcg_gen_xor_i32(tmp2, tmp1, cpu_R[RRR_S]); | |
718 | tcg_gen_andi_i32(tmp2, tmp2, 0xffffffff << (RRR_T + 7)); | |
719 | tcg_gen_mov_i32(cpu_R[RRR_R], cpu_R[RRR_S]); | |
720 | tcg_gen_brcondi_i32(TCG_COND_EQ, tmp2, 0, label); | |
721 | ||
722 | tcg_gen_sari_i32(tmp1, cpu_R[RRR_S], 31); | |
723 | tcg_gen_xori_i32(cpu_R[RRR_R], tmp1, | |
724 | 0xffffffff >> (25 - RRR_T)); | |
725 | ||
726 | gen_set_label(label); | |
727 | ||
728 | tcg_temp_free(tmp1); | |
729 | tcg_temp_free(tmp2); | |
730 | } | |
731 | break; | |
732 | ||
733 | case 4: /*MINu*/ | |
734 | case 5: /*MAXu*/ | |
735 | case 6: /*MINUu*/ | |
736 | case 7: /*MAXUu*/ | |
737 | HAS_OPTION(XTENSA_OPTION_MISC_OP); | |
738 | { | |
739 | static const TCGCond cond[] = { | |
740 | TCG_COND_LE, | |
741 | TCG_COND_GE, | |
742 | TCG_COND_LEU, | |
743 | TCG_COND_GEU | |
744 | }; | |
745 | int label = gen_new_label(); | |
746 | ||
747 | if (RRR_R != RRR_T) { | |
748 | tcg_gen_mov_i32(cpu_R[RRR_R], cpu_R[RRR_S]); | |
749 | tcg_gen_brcond_i32(cond[OP2 - 4], | |
750 | cpu_R[RRR_S], cpu_R[RRR_T], label); | |
751 | tcg_gen_mov_i32(cpu_R[RRR_R], cpu_R[RRR_T]); | |
752 | } else { | |
753 | tcg_gen_brcond_i32(cond[OP2 - 4], | |
754 | cpu_R[RRR_T], cpu_R[RRR_S], label); | |
755 | tcg_gen_mov_i32(cpu_R[RRR_R], cpu_R[RRR_S]); | |
756 | } | |
757 | gen_set_label(label); | |
758 | } | |
759 | break; | |
760 | ||
761 | case 8: /*MOVEQZ*/ | |
762 | case 9: /*MOVNEZ*/ | |
763 | case 10: /*MOVLTZ*/ | |
764 | case 11: /*MOVGEZ*/ | |
765 | { | |
766 | static const TCGCond cond[] = { | |
767 | TCG_COND_NE, | |
768 | TCG_COND_EQ, | |
769 | TCG_COND_GE, | |
770 | TCG_COND_LT | |
771 | }; | |
772 | int label = gen_new_label(); | |
773 | tcg_gen_brcondi_i32(cond[OP2 - 8], cpu_R[RRR_T], 0, label); | |
774 | tcg_gen_mov_i32(cpu_R[RRR_R], cpu_R[RRR_S]); | |
775 | gen_set_label(label); | |
776 | } | |
777 | break; | |
778 | ||
779 | case 12: /*MOVFp*/ | |
780 | HAS_OPTION(XTENSA_OPTION_BOOLEAN); | |
781 | break; | |
782 | ||
783 | case 13: /*MOVTp*/ | |
784 | HAS_OPTION(XTENSA_OPTION_BOOLEAN); | |
785 | break; | |
786 | ||
787 | case 14: /*RUR*/ | |
788 | { | |
789 | int st = (RRR_S << 4) + RRR_T; | |
790 | if (uregnames[st]) { | |
791 | tcg_gen_mov_i32(cpu_R[RRR_R], cpu_UR[st]); | |
792 | } else { | |
793 | qemu_log("RUR %d not implemented, ", st); | |
794 | } | |
795 | } | |
796 | break; | |
797 | ||
798 | case 15: /*WUR*/ | |
799 | { | |
800 | if (uregnames[RSR_SR]) { | |
801 | tcg_gen_mov_i32(cpu_UR[RSR_SR], cpu_R[RRR_T]); | |
802 | } else { | |
803 | qemu_log("WUR %d not implemented, ", RSR_SR); | |
804 | } | |
805 | } | |
806 | break; | |
807 | ||
808 | } | |
dedc5eae MF |
809 | break; |
810 | ||
811 | case 4: /*EXTUI*/ | |
812 | case 5: | |
3580ecad MF |
813 | { |
814 | int shiftimm = RRR_S | (OP1 << 4); | |
815 | int maskimm = (1 << (OP2 + 1)) - 1; | |
816 | ||
817 | TCGv_i32 tmp = tcg_temp_new_i32(); | |
818 | tcg_gen_shri_i32(tmp, cpu_R[RRR_T], shiftimm); | |
819 | tcg_gen_andi_i32(cpu_R[RRR_R], tmp, maskimm); | |
820 | tcg_temp_free(tmp); | |
821 | } | |
dedc5eae MF |
822 | break; |
823 | ||
824 | case 6: /*CUST0*/ | |
825 | break; | |
826 | ||
827 | case 7: /*CUST1*/ | |
828 | break; | |
829 | ||
830 | case 8: /*LSCXp*/ | |
831 | HAS_OPTION(XTENSA_OPTION_COPROCESSOR); | |
832 | break; | |
833 | ||
834 | case 9: /*LSC4*/ | |
835 | break; | |
836 | ||
837 | case 10: /*FP0*/ | |
838 | HAS_OPTION(XTENSA_OPTION_FP_COPROCESSOR); | |
839 | break; | |
840 | ||
841 | case 11: /*FP1*/ | |
842 | HAS_OPTION(XTENSA_OPTION_FP_COPROCESSOR); | |
843 | break; | |
844 | ||
845 | default: /*reserved*/ | |
846 | break; | |
847 | } | |
848 | break; | |
849 | ||
850 | case 1: /*L32R*/ | |
851 | { | |
852 | TCGv_i32 tmp = tcg_const_i32( | |
853 | (0xfffc0000 | (RI16_IMM16 << 2)) + | |
854 | ((dc->pc + 3) & ~3)); | |
855 | ||
856 | /* no ext L32R */ | |
857 | ||
858 | tcg_gen_qemu_ld32u(cpu_R[RRR_T], tmp, 0); | |
859 | tcg_temp_free(tmp); | |
860 | } | |
861 | break; | |
862 | ||
863 | case 2: /*LSAI*/ | |
809377aa MF |
864 | #define gen_load_store(type, shift) do { \ |
865 | TCGv_i32 addr = tcg_temp_new_i32(); \ | |
866 | tcg_gen_addi_i32(addr, cpu_R[RRI8_S], RRI8_IMM8 << shift); \ | |
867 | tcg_gen_qemu_##type(cpu_R[RRI8_T], addr, 0); \ | |
868 | tcg_temp_free(addr); \ | |
869 | } while (0) | |
870 | ||
871 | switch (RRI8_R) { | |
872 | case 0: /*L8UI*/ | |
873 | gen_load_store(ld8u, 0); | |
874 | break; | |
875 | ||
876 | case 1: /*L16UI*/ | |
877 | gen_load_store(ld16u, 1); | |
878 | break; | |
879 | ||
880 | case 2: /*L32I*/ | |
881 | gen_load_store(ld32u, 2); | |
882 | break; | |
883 | ||
884 | case 4: /*S8I*/ | |
885 | gen_load_store(st8, 0); | |
886 | break; | |
887 | ||
888 | case 5: /*S16I*/ | |
889 | gen_load_store(st16, 1); | |
890 | break; | |
891 | ||
892 | case 6: /*S32I*/ | |
893 | gen_load_store(st32, 2); | |
894 | break; | |
895 | ||
896 | case 7: /*CACHEc*/ | |
897 | break; | |
898 | ||
899 | case 9: /*L16SI*/ | |
900 | gen_load_store(ld16s, 1); | |
901 | break; | |
902 | ||
903 | case 10: /*MOVI*/ | |
904 | tcg_gen_movi_i32(cpu_R[RRI8_T], | |
905 | RRI8_IMM8 | (RRI8_S << 8) | | |
906 | ((RRI8_S & 0x8) ? 0xfffff000 : 0)); | |
907 | break; | |
908 | ||
909 | case 11: /*L32AIy*/ | |
910 | HAS_OPTION(XTENSA_OPTION_MP_SYNCHRO); | |
911 | gen_load_store(ld32u, 2); /*TODO acquire?*/ | |
912 | break; | |
913 | ||
914 | case 12: /*ADDI*/ | |
915 | tcg_gen_addi_i32(cpu_R[RRI8_T], cpu_R[RRI8_S], RRI8_IMM8_SE); | |
916 | break; | |
917 | ||
918 | case 13: /*ADDMI*/ | |
919 | tcg_gen_addi_i32(cpu_R[RRI8_T], cpu_R[RRI8_S], RRI8_IMM8_SE << 8); | |
920 | break; | |
921 | ||
922 | case 14: /*S32C1Iy*/ | |
923 | HAS_OPTION(XTENSA_OPTION_MP_SYNCHRO); | |
924 | { | |
925 | int label = gen_new_label(); | |
926 | TCGv_i32 tmp = tcg_temp_local_new_i32(); | |
927 | TCGv_i32 addr = tcg_temp_local_new_i32(); | |
928 | ||
929 | tcg_gen_mov_i32(tmp, cpu_R[RRI8_T]); | |
930 | tcg_gen_addi_i32(addr, cpu_R[RRI8_S], RRI8_IMM8 << 2); | |
931 | tcg_gen_qemu_ld32u(cpu_R[RRI8_T], addr, 0); | |
932 | tcg_gen_brcond_i32(TCG_COND_NE, cpu_R[RRI8_T], | |
933 | cpu_SR[SCOMPARE1], label); | |
934 | ||
935 | tcg_gen_qemu_st32(tmp, addr, 0); | |
936 | ||
937 | gen_set_label(label); | |
938 | tcg_temp_free(addr); | |
939 | tcg_temp_free(tmp); | |
940 | } | |
941 | break; | |
942 | ||
943 | case 15: /*S32RIy*/ | |
944 | HAS_OPTION(XTENSA_OPTION_MP_SYNCHRO); | |
945 | gen_load_store(st32, 2); /*TODO release?*/ | |
946 | break; | |
947 | ||
948 | default: /*reserved*/ | |
949 | break; | |
950 | } | |
dedc5eae | 951 | break; |
809377aa | 952 | #undef gen_load_store |
dedc5eae MF |
953 | |
954 | case 3: /*LSCIp*/ | |
955 | HAS_OPTION(XTENSA_OPTION_COPROCESSOR); | |
956 | break; | |
957 | ||
958 | case 4: /*MAC16d*/ | |
959 | HAS_OPTION(XTENSA_OPTION_MAC16); | |
960 | break; | |
961 | ||
962 | case 5: /*CALLN*/ | |
963 | switch (CALL_N) { | |
964 | case 0: /*CALL0*/ | |
965 | tcg_gen_movi_i32(cpu_R[0], dc->next_pc); | |
966 | gen_jumpi(dc, (dc->pc & ~3) + (CALL_OFFSET_SE << 2) + 4, 0); | |
967 | break; | |
968 | ||
969 | case 1: /*CALL4w*/ | |
970 | case 2: /*CALL8w*/ | |
971 | case 3: /*CALL12w*/ | |
972 | HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); | |
973 | break; | |
974 | } | |
975 | break; | |
976 | ||
977 | case 6: /*SI*/ | |
978 | switch (CALL_N) { | |
979 | case 0: /*J*/ | |
980 | gen_jumpi(dc, dc->pc + 4 + CALL_OFFSET_SE, 0); | |
981 | break; | |
982 | ||
bd57fb91 MF |
983 | case 1: /*BZ*/ |
984 | { | |
985 | static const TCGCond cond[] = { | |
986 | TCG_COND_EQ, /*BEQZ*/ | |
987 | TCG_COND_NE, /*BNEZ*/ | |
988 | TCG_COND_LT, /*BLTZ*/ | |
989 | TCG_COND_GE, /*BGEZ*/ | |
990 | }; | |
991 | ||
992 | gen_brcondi(dc, cond[BRI12_M & 3], cpu_R[BRI12_S], 0, | |
993 | 4 + BRI12_IMM12_SE); | |
994 | } | |
995 | break; | |
996 | ||
997 | case 2: /*BI0*/ | |
998 | { | |
999 | static const TCGCond cond[] = { | |
1000 | TCG_COND_EQ, /*BEQI*/ | |
1001 | TCG_COND_NE, /*BNEI*/ | |
1002 | TCG_COND_LT, /*BLTI*/ | |
1003 | TCG_COND_GE, /*BGEI*/ | |
1004 | }; | |
1005 | ||
1006 | gen_brcondi(dc, cond[BRI8_M & 3], | |
1007 | cpu_R[BRI8_S], B4CONST[BRI8_R], 4 + BRI8_IMM8_SE); | |
1008 | } | |
1009 | break; | |
1010 | ||
1011 | case 3: /*BI1*/ | |
1012 | switch (BRI8_M) { | |
1013 | case 0: /*ENTRYw*/ | |
1014 | HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); | |
1015 | break; | |
1016 | ||
1017 | case 1: /*B1*/ | |
1018 | switch (BRI8_R) { | |
1019 | case 0: /*BFp*/ | |
1020 | HAS_OPTION(XTENSA_OPTION_BOOLEAN); | |
1021 | break; | |
1022 | ||
1023 | case 1: /*BTp*/ | |
1024 | HAS_OPTION(XTENSA_OPTION_BOOLEAN); | |
1025 | break; | |
1026 | ||
1027 | case 8: /*LOOP*/ | |
1028 | break; | |
1029 | ||
1030 | case 9: /*LOOPNEZ*/ | |
1031 | break; | |
1032 | ||
1033 | case 10: /*LOOPGTZ*/ | |
1034 | break; | |
1035 | ||
1036 | default: /*reserved*/ | |
1037 | break; | |
1038 | ||
1039 | } | |
1040 | break; | |
1041 | ||
1042 | case 2: /*BLTUI*/ | |
1043 | case 3: /*BGEUI*/ | |
1044 | gen_brcondi(dc, BRI8_M == 2 ? TCG_COND_LTU : TCG_COND_GEU, | |
1045 | cpu_R[BRI8_S], B4CONSTU[BRI8_R], 4 + BRI8_IMM8_SE); | |
1046 | break; | |
1047 | } | |
1048 | break; | |
1049 | ||
dedc5eae MF |
1050 | } |
1051 | break; | |
1052 | ||
1053 | case 7: /*B*/ | |
bd57fb91 MF |
1054 | { |
1055 | TCGCond eq_ne = (RRI8_R & 8) ? TCG_COND_NE : TCG_COND_EQ; | |
1056 | ||
1057 | switch (RRI8_R & 7) { | |
1058 | case 0: /*BNONE*/ /*BANY*/ | |
1059 | { | |
1060 | TCGv_i32 tmp = tcg_temp_new_i32(); | |
1061 | tcg_gen_and_i32(tmp, cpu_R[RRI8_S], cpu_R[RRI8_T]); | |
1062 | gen_brcondi(dc, eq_ne, tmp, 0, 4 + RRI8_IMM8_SE); | |
1063 | tcg_temp_free(tmp); | |
1064 | } | |
1065 | break; | |
1066 | ||
1067 | case 1: /*BEQ*/ /*BNE*/ | |
1068 | case 2: /*BLT*/ /*BGE*/ | |
1069 | case 3: /*BLTU*/ /*BGEU*/ | |
1070 | { | |
1071 | static const TCGCond cond[] = { | |
1072 | [1] = TCG_COND_EQ, | |
1073 | [2] = TCG_COND_LT, | |
1074 | [3] = TCG_COND_LTU, | |
1075 | [9] = TCG_COND_NE, | |
1076 | [10] = TCG_COND_GE, | |
1077 | [11] = TCG_COND_GEU, | |
1078 | }; | |
1079 | gen_brcond(dc, cond[RRI8_R], cpu_R[RRI8_S], cpu_R[RRI8_T], | |
1080 | 4 + RRI8_IMM8_SE); | |
1081 | } | |
1082 | break; | |
1083 | ||
1084 | case 4: /*BALL*/ /*BNALL*/ | |
1085 | { | |
1086 | TCGv_i32 tmp = tcg_temp_new_i32(); | |
1087 | tcg_gen_and_i32(tmp, cpu_R[RRI8_S], cpu_R[RRI8_T]); | |
1088 | gen_brcond(dc, eq_ne, tmp, cpu_R[RRI8_T], | |
1089 | 4 + RRI8_IMM8_SE); | |
1090 | tcg_temp_free(tmp); | |
1091 | } | |
1092 | break; | |
1093 | ||
1094 | case 5: /*BBC*/ /*BBS*/ | |
1095 | { | |
1096 | TCGv_i32 bit = tcg_const_i32(1); | |
1097 | TCGv_i32 tmp = tcg_temp_new_i32(); | |
1098 | tcg_gen_andi_i32(tmp, cpu_R[RRI8_T], 0x1f); | |
1099 | tcg_gen_shl_i32(bit, bit, tmp); | |
1100 | tcg_gen_and_i32(tmp, cpu_R[RRI8_S], bit); | |
1101 | gen_brcondi(dc, eq_ne, tmp, 0, 4 + RRI8_IMM8_SE); | |
1102 | tcg_temp_free(tmp); | |
1103 | tcg_temp_free(bit); | |
1104 | } | |
1105 | break; | |
1106 | ||
1107 | case 6: /*BBCI*/ /*BBSI*/ | |
1108 | case 7: | |
1109 | { | |
1110 | TCGv_i32 tmp = tcg_temp_new_i32(); | |
1111 | tcg_gen_andi_i32(tmp, cpu_R[RRI8_S], | |
1112 | 1 << (((RRI8_R & 1) << 4) | RRI8_T)); | |
1113 | gen_brcondi(dc, eq_ne, tmp, 0, 4 + RRI8_IMM8_SE); | |
1114 | tcg_temp_free(tmp); | |
1115 | } | |
1116 | break; | |
1117 | ||
1118 | } | |
1119 | } | |
dedc5eae MF |
1120 | break; |
1121 | ||
67882fd1 MF |
1122 | #define gen_narrow_load_store(type) do { \ |
1123 | TCGv_i32 addr = tcg_temp_new_i32(); \ | |
1124 | tcg_gen_addi_i32(addr, cpu_R[RRRN_S], RRRN_R << 2); \ | |
1125 | tcg_gen_qemu_##type(cpu_R[RRRN_T], addr, 0); \ | |
1126 | tcg_temp_free(addr); \ | |
1127 | } while (0) | |
1128 | ||
dedc5eae | 1129 | case 8: /*L32I.Nn*/ |
67882fd1 | 1130 | gen_narrow_load_store(ld32u); |
dedc5eae MF |
1131 | break; |
1132 | ||
1133 | case 9: /*S32I.Nn*/ | |
67882fd1 | 1134 | gen_narrow_load_store(st32); |
dedc5eae | 1135 | break; |
67882fd1 | 1136 | #undef gen_narrow_load_store |
dedc5eae MF |
1137 | |
1138 | case 10: /*ADD.Nn*/ | |
67882fd1 | 1139 | tcg_gen_add_i32(cpu_R[RRRN_R], cpu_R[RRRN_S], cpu_R[RRRN_T]); |
dedc5eae MF |
1140 | break; |
1141 | ||
1142 | case 11: /*ADDI.Nn*/ | |
67882fd1 | 1143 | tcg_gen_addi_i32(cpu_R[RRRN_R], cpu_R[RRRN_S], RRRN_T ? RRRN_T : -1); |
dedc5eae MF |
1144 | break; |
1145 | ||
1146 | case 12: /*ST2n*/ | |
67882fd1 MF |
1147 | if (RRRN_T < 8) { /*MOVI.Nn*/ |
1148 | tcg_gen_movi_i32(cpu_R[RRRN_S], | |
1149 | RRRN_R | (RRRN_T << 4) | | |
1150 | ((RRRN_T & 6) == 6 ? 0xffffff80 : 0)); | |
1151 | } else { /*BEQZ.Nn*/ /*BNEZ.Nn*/ | |
bd57fb91 MF |
1152 | TCGCond eq_ne = (RRRN_T & 4) ? TCG_COND_NE : TCG_COND_EQ; |
1153 | ||
1154 | gen_brcondi(dc, eq_ne, cpu_R[RRRN_S], 0, | |
1155 | 4 + (RRRN_R | ((RRRN_T & 3) << 4))); | |
67882fd1 | 1156 | } |
dedc5eae MF |
1157 | break; |
1158 | ||
1159 | case 13: /*ST3n*/ | |
67882fd1 MF |
1160 | switch (RRRN_R) { |
1161 | case 0: /*MOV.Nn*/ | |
1162 | tcg_gen_mov_i32(cpu_R[RRRN_T], cpu_R[RRRN_S]); | |
1163 | break; | |
1164 | ||
1165 | case 15: /*S3*/ | |
1166 | switch (RRRN_T) { | |
1167 | case 0: /*RET.Nn*/ | |
1168 | gen_jump(dc, cpu_R[0]); | |
1169 | break; | |
1170 | ||
1171 | case 1: /*RETW.Nn*/ | |
1172 | break; | |
1173 | ||
1174 | case 2: /*BREAK.Nn*/ | |
1175 | break; | |
1176 | ||
1177 | case 3: /*NOP.Nn*/ | |
1178 | break; | |
1179 | ||
1180 | case 6: /*ILL.Nn*/ | |
1181 | break; | |
1182 | ||
1183 | default: /*reserved*/ | |
1184 | break; | |
1185 | } | |
1186 | break; | |
1187 | ||
1188 | default: /*reserved*/ | |
1189 | break; | |
1190 | } | |
dedc5eae MF |
1191 | break; |
1192 | ||
1193 | default: /*reserved*/ | |
1194 | break; | |
1195 | } | |
1196 | ||
1197 | dc->pc = dc->next_pc; | |
1198 | return; | |
1199 | ||
1200 | invalid_opcode: | |
1201 | qemu_log("INVALID(pc = %08x)\n", dc->pc); | |
1202 | dc->pc = dc->next_pc; | |
1203 | #undef HAS_OPTION | |
1204 | } | |
1205 | ||
1206 | static void check_breakpoint(CPUState *env, DisasContext *dc) | |
1207 | { | |
1208 | CPUBreakpoint *bp; | |
1209 | ||
1210 | if (unlikely(!QTAILQ_EMPTY(&env->breakpoints))) { | |
1211 | QTAILQ_FOREACH(bp, &env->breakpoints, entry) { | |
1212 | if (bp->pc == dc->pc) { | |
1213 | tcg_gen_movi_i32(cpu_pc, dc->pc); | |
1214 | gen_exception(EXCP_DEBUG); | |
1215 | dc->is_jmp = DISAS_UPDATE; | |
1216 | } | |
1217 | } | |
1218 | } | |
1219 | } | |
1220 | ||
1221 | static void gen_intermediate_code_internal( | |
1222 | CPUState *env, TranslationBlock *tb, int search_pc) | |
1223 | { | |
1224 | DisasContext dc; | |
1225 | int insn_count = 0; | |
1226 | int j, lj = -1; | |
1227 | uint16_t *gen_opc_end = gen_opc_buf + OPC_MAX_SIZE; | |
1228 | int max_insns = tb->cflags & CF_COUNT_MASK; | |
1229 | uint32_t pc_start = tb->pc; | |
1230 | uint32_t next_page_start = | |
1231 | (pc_start & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE; | |
1232 | ||
1233 | if (max_insns == 0) { | |
1234 | max_insns = CF_COUNT_MASK; | |
1235 | } | |
1236 | ||
1237 | dc.config = env->config; | |
1238 | dc.singlestep_enabled = env->singlestep_enabled; | |
1239 | dc.tb = tb; | |
1240 | dc.pc = pc_start; | |
1241 | dc.is_jmp = DISAS_NEXT; | |
1242 | ||
3580ecad MF |
1243 | init_sar_tracker(&dc); |
1244 | ||
dedc5eae MF |
1245 | gen_icount_start(); |
1246 | ||
1247 | do { | |
1248 | check_breakpoint(env, &dc); | |
1249 | ||
1250 | if (search_pc) { | |
1251 | j = gen_opc_ptr - gen_opc_buf; | |
1252 | if (lj < j) { | |
1253 | lj++; | |
1254 | while (lj < j) { | |
1255 | gen_opc_instr_start[lj++] = 0; | |
1256 | } | |
1257 | } | |
1258 | gen_opc_pc[lj] = dc.pc; | |
1259 | gen_opc_instr_start[lj] = 1; | |
1260 | gen_opc_icount[lj] = insn_count; | |
1261 | } | |
1262 | ||
1263 | if (unlikely(qemu_loglevel_mask(CPU_LOG_TB_OP))) { | |
1264 | tcg_gen_debug_insn_start(dc.pc); | |
1265 | } | |
1266 | ||
1267 | disas_xtensa_insn(&dc); | |
1268 | ++insn_count; | |
1269 | if (env->singlestep_enabled) { | |
1270 | tcg_gen_movi_i32(cpu_pc, dc.pc); | |
1271 | gen_exception(EXCP_DEBUG); | |
1272 | break; | |
1273 | } | |
1274 | } while (dc.is_jmp == DISAS_NEXT && | |
1275 | insn_count < max_insns && | |
1276 | dc.pc < next_page_start && | |
1277 | gen_opc_ptr < gen_opc_end); | |
1278 | ||
3580ecad MF |
1279 | reset_sar_tracker(&dc); |
1280 | ||
dedc5eae MF |
1281 | if (dc.is_jmp == DISAS_NEXT) { |
1282 | gen_jumpi(&dc, dc.pc, 0); | |
1283 | } | |
1284 | gen_icount_end(tb, insn_count); | |
1285 | *gen_opc_ptr = INDEX_op_end; | |
1286 | ||
1287 | if (!search_pc) { | |
1288 | tb->size = dc.pc - pc_start; | |
1289 | tb->icount = insn_count; | |
1290 | } | |
2328826b MF |
1291 | } |
1292 | ||
1293 | void gen_intermediate_code(CPUState *env, TranslationBlock *tb) | |
1294 | { | |
dedc5eae | 1295 | gen_intermediate_code_internal(env, tb, 0); |
2328826b MF |
1296 | } |
1297 | ||
1298 | void gen_intermediate_code_pc(CPUState *env, TranslationBlock *tb) | |
1299 | { | |
dedc5eae | 1300 | gen_intermediate_code_internal(env, tb, 1); |
2328826b MF |
1301 | } |
1302 | ||
1303 | void cpu_dump_state(CPUState *env, FILE *f, fprintf_function cpu_fprintf, | |
1304 | int flags) | |
1305 | { | |
2af3da91 MF |
1306 | int i, j; |
1307 | ||
1308 | cpu_fprintf(f, "PC=%08x\n\n", env->pc); | |
1309 | ||
1310 | for (i = j = 0; i < 256; ++i) { | |
1311 | if (sregnames[i]) { | |
1312 | cpu_fprintf(f, "%s=%08x%c", sregnames[i], env->sregs[i], | |
1313 | (j++ % 4) == 3 ? '\n' : ' '); | |
1314 | } | |
1315 | } | |
1316 | ||
1317 | cpu_fprintf(f, (j % 4) == 0 ? "\n" : "\n\n"); | |
1318 | ||
1319 | for (i = j = 0; i < 256; ++i) { | |
1320 | if (uregnames[i]) { | |
1321 | cpu_fprintf(f, "%s=%08x%c", uregnames[i], env->uregs[i], | |
1322 | (j++ % 4) == 3 ? '\n' : ' '); | |
1323 | } | |
1324 | } | |
2328826b | 1325 | |
2af3da91 | 1326 | cpu_fprintf(f, (j % 4) == 0 ? "\n" : "\n\n"); |
2328826b MF |
1327 | |
1328 | for (i = 0; i < 16; ++i) { | |
1329 | cpu_fprintf(f, "A%02d=%08x%c", i, env->regs[i], | |
1330 | (i % 4) == 3 ? '\n' : ' '); | |
1331 | } | |
1332 | } | |
1333 | ||
1334 | void restore_state_to_opc(CPUState *env, TranslationBlock *tb, int pc_pos) | |
1335 | { | |
1336 | env->pc = gen_opc_pc[pc_pos]; | |
1337 | } |